No wifi on Sharp LC-46LE830U

So, we recently bought a 46" Sharp TV. We have everything working well, except for the wifi. We go through the wifi steps, but when we use AQUOS.net it tells us we don't have a connection. It says, "A connection cannot be established. A connection error has occurred in TCP." But when we see the internet settings, it shows that our signal strength is at full strength and the IP address status is "setup completed". What are we doing wrong and how do we fix this?